<template>
  <div style="width: 500px">
    <el-input
        placeholder="请输入相关部门进行搜索。。。"
        prefix-icon="el-icon-search"
        v-model="filterText">
    </el-input>

    <el-tree
        class="filter-tree"
        :data="deps"
        :props="defaultProps"
        :filter-node-method="filterNode"
        :expand-on-click-node="false"
        ref="tree">
       <span class="custom-tree-node" slot-scope="{ node, data }" style="display: flex;
justify-content: space-between; width: 100%">
        <span>{{ data.name }}</span>
        <span>
          <el-button
              type="primary"
              size="mini"
              class="depBtn"
              @click="() => showAddDep(data)">
            添加部门
          </el-button>
          <el-button
              type="danger"
              size="mini"
              class="depBtn"
              @click="() => deleteDep(data)">
            删除部门
          </el-button>
        </span>
      </span>
    </el-tree>
    <el-dialog
        title="添加部门"
        :visible.sync="dialogVisible"
        width="30%">
      <div>
        <tr>
          <td><el-tag>上级部门</el-tag></td>
          <td>{{pname}}</td>
        </tr>
        <tr>
          <td><el-tag>部门名称</el-tag></td>
          <td><el-input v-model="dep.name" placeholder="请输入部门名称。。"></el-input></td>
        </tr>

      </div>
      <span slot="footer" class="dialog-footer">
    <el-button @click="dialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="doAddDep">确 定</el-button>
  </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
name: "DepMana",
  data(){
    return{
      filterText:'',
      deps:[],
      defaultProps: {
        children: 'children',
        label: 'name'
      },
      dialogVisible:false,
      dep:{
        name:'',
        parentId:-1
      },
      pname:''
    }
  },
  watch: {
    filterText(val) {
      this.$refs.tree.filter(val);
    }
  },
  mounted() {
  this.initDeps()
  },
  methods:{
    //删除部门
    removeDepFromDeps(p,deps,id){
      for (let i = 0; i < deps.length; i++) {
        let d = deps[i];
        if (d.id==id){
          deps.splice(i,1)
          if (deps.length==0){
            p.isParent=false
          }
        return
        }else {
          this.removeDepFromDeps(d,d.children,id)
        }
      }
    },
    addDep2Deps(deps,dep){
      for (let i = 0; i < deps.length; i++) {
        let d = deps[i]
        if (d.id==dep.parentId){
          d.children=d.children.concat(dep)
          if (d.children.length>0){
            d.isParent=true
          }
          return
        }else {
          this.addDep2Deps(d.children,dep)
        }
      }
    },
    initDep(){
      this.dep={
        name: '',
        parentId: -1
      }
      this.pname=''
    },
    doAddDep(){
      this.postRequest('/system/basic/department/',this.dep).then(resp=>{
        if (resp){
          this.addDep2Deps(this.deps,resp.obj)
          this.dialogVisible=false
          this.initDep()
        }
      })
    },
    showAddDep(data){
      this.pname=data.name
      this.dep.parentId=data.id
      this.dialogVisible=true
    },
    deleteDep(data){
      if (data.isParent){
        this.$message.error('父部门不能删除')
      }else {
        this.$confirm('此操作将永久删除['+data.name+']部门, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          this.deleteRequest('/system/basic/department/'+data.id).then(resp=>{
            if (resp){
              this.removeDepFromDeps(null,this.deps,data.id)
            }
          })
        }).catch(() => {
          this.$message({
            type: 'info',
            message: '已取消删除'
          });
        });
      }
    },
    initDeps(){
      this.gettRequest('/system/basic/department/').then(resp=>{
        if (resp){
          this.deps=resp
        }
      })
    },
    filterNode(value,data){
      if (!value) return true;
      return data.name.indexOf(value) !== -1;
    }
  },
}
</script>

<style>
.depBtn{
  padding: 2px;
}

</style>